diff options
author | Alex Shi <alex.shi@linaro.org> | 2017-12-21 12:06:53 +0800 |
---|---|---|
committer | Alex Shi <alex.shi@linaro.org> | 2017-12-21 12:06:53 +0800 |
commit | 317c5652a7c300c2d82ef5bfae8d3558f389d219 (patch) | |
tree | 9cb4998f4275d8d551ab04cd33af32cf0266b3af /fs/fs-writeback.c | |
parent | 2cea360fea5e5e1cb69496612466be2b99254096 (diff) | |
parent | 1b29aa698d3ef8826599dc856054640eb71d2e33 (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'fs/fs-writeback.c')
-rw-r--r-- | fs/fs-writeback.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index de11206dda63..48fe91e86c2a 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -173,19 +173,33 @@ static void wb_wakeup(struct bdi_writeback *wb) spin_unlock_bh(&wb->work_lock); } +static void finish_writeback_work(struct bdi_writeback *wb, + struct wb_writeback_work *work) +{ + struct wb_completion *done = work->done; + + if (work->auto_free) + kfree(work); + if (done && atomic_dec_and_test(&done->cnt)) + wake_up_all(&wb->bdi->wb_waitq); +} + static void wb_queue_work(struct bdi_writeback *wb, struct wb_writeback_work *work) { trace_writeback_queue(wb, work); - spin_lock_bh(&wb->work_lock); - if (!test_bit(WB_registered, &wb->state)) - goto out_unlock; if (work->done) atomic_inc(&work->done->cnt); - list_add_tail(&work->list, &wb->work_list); - mod_delayed_work(bdi_wq, &wb->dwork, 0); -out_unlock: + + spin_lock_bh(&wb->work_lock); + + if (test_bit(WB_registered, &wb->state)) { + list_add_tail(&work->list, &wb->work_list); + mod_delayed_work(bdi_wq, &wb->dwork, 0); + } else + finish_writeback_work(wb, work); + spin_unlock_bh(&wb->work_lock); } @@ -1839,16 +1853,9 @@ static long wb_do_writeback(struct bdi_writeback *wb) set_bit(WB_writeback_running, &wb->state); while ((work = get_next_work_item(wb)) != NULL) { - struct wb_completion *done = work->done; - trace_writeback_exec(wb, work); - wrote += wb_writeback(wb, work); - - if (work->auto_free) - kfree(work); - if (done && atomic_dec_and_test(&done->cnt)) - wake_up_all(&wb->bdi->wb_waitq); + finish_writeback_work(wb, work); } /* |